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TK-2102G
36
LEVEL DIAGRAM
Receiver Section
Transmitter Section
SG output level for obtaining 12dB / SINAD when injected to each
point through a 470pF coupling capacitor.
Measure the 1st Local level on a RF VTVM.
Modulate the AF level with a frequency of 1kHz and deviation
of 1.5kHz (Narrow), 3kHz (Wide). Then take the signal from the
signal generator output when set to -53dBm and obtain the
level shown on an AF VTVM when the AF output has been ad-
justed to 0.63Vrms with the AF vol.
Measure the audio frequency on an AF VTVM and radio frequency
on a RF VTVM at high impedance.
Set the MIC input obtain a moduration factor of 60% with the
transmit frequency at center and a modulation frequency of 1kHz.
ANT L114
C137 C262
L208, L209,
L210
5R
Q203
R217
L203,
L214
Q202
R211
XF200
1st Local
0.1Vrms
R210
Q201
C212
IC200
16
957
IC300
AF VR
410
IC302
Q307
SP
RF (Center frequency) IF (38.85MHz) AF (1kHz)
-116dBm -112.5dBm
-100dBm
-103.5dBm -107dBm -107dBm -105dBm 113mVrms 185mVrms 23.5mVrms 0.63Vrms
MIC
21 67
IC500
VR501
D5
C34
Q4
Q6
C44
C100
Q100 Q101
C104
C109
Q102
C116
Q105
ANT
5.0W
AF VTVM RF VTVM
12mVrms 390mVrms 120mVrms 0.16Vrms 0.17Vrms 0.53Vrms